A Mexican man accused in the killing of a U.S. Border Patrol agent has admitted he was part of a crew that sneaked into the United States to find marijuana smugglers to rob at the time of the fatal shooting.

The last round of written closing arguments are due Thursday in a trial aimed at settling allegations that Maricopa County Sheriff Joe Arpaio's office racially profiles Latinos in its immigration patrols.

Offensive letters, tearful personal stories and reams of statistics have been shared as plaintiffs' lawyers rested their case Tuesday in a racial profiling lawsuit against an Arizona sheriff and his department.

A woman testifying Thursday at a racial profiling trial against Maricopa County Sheriff Joe Arpaio and his department said that during an unjustified traffic stop a sheriff's deputy slammed her stomach-first into her car while she was five months pregnant.